使用AWS API网关的API密钥可以提供对API端点的访问控制，并通过使用API key保护API端点免受恶意攻击。以下是使用AWS API网关API密钥保护API端点的一些示例代码。

1. 在版本2中使用API密钥：

# Set up the API Key Required method
resource "aws_api_gateway_method_settings" "example" {
  rest_api_id = "${aws_api_gateway_rest_api.example.id}"
  stage_name  = "${aws_api_gateway_stage.example.name}"
  method_path = "/*/*/create"
  settings = {
    api_key_required = true
  }
}

# Deploy the REST API
resource "aws_api_gateway_deployment" "example" {
  rest_api_id = "${aws_api_gateway_rest_api.example.id}"
  stage_name  = "${aws_api_gateway_stage.example.name}"
}

2. 为访问API端点配置API密钥：

# Define an API Key
resource "aws_api_gateway_api_key" "example" {
  name = "exampleApiKey"
}

# Add resource/method to API Gateway
resource "aws_api_gateway_resource" "example" {
  rest_api_id = "${aws_api_gateway_rest_api.example.id}"
  parent_id   = "${aws_api_gateway_rest_api.example.root_resource_id}"
  path_part   = "exampleResource"
}
resource "aws_api_gateway_method" "exampleMethod" {
  rest_api_id   = "${aws_api_gateway_rest_api.example.id}"
  resource_id   = "${aws_api_gateway_resource.example.id}"
  http_method   = "ANY"
  authorization = "NONE"
}

# Associate the API Key with the Resource/Method
resource "aws_api_gateway_usage_plan" "example" {
  name = "exampleUsagePlan"
  product_code = "exampleProductCode"

  api_stages {
    api_id = "${aws_api_gateway_rest_api.example.id}"
    stage  = "${aws_api_gateway_stage.example.name}"
  }

  # Define the API Key Usage
  quota {
    limit = 10000
    offset = 1
    period = "MONTH"
  }
  throttle {
    burst_limit = 5
    rate